Quick detour OT: I had a staff member barge in to my room at the Grand Hyatt Singapore the other day while just sitting on the couch. Lucky it was all kosher because there was no knocking involved. Fairly sure he thought the room was empty.
Hilariously, all he could say was "Is everything all right in here? Can I get you anything?" ... "Um, yeah mate, everything's fine, thanks."
And then the next day, I had just got out of the shower and another guy came in for turndown. I was still in the dressing stage. He calls out and I say I am fine, but he still poked his head around the corner. Seriously! Thank god it was a suite, otherwise he would have been right there in the bedroom with me. Staff were great otherwise though.
So yeah, it does make you think!